What’s it for?
The Ratio Ring is a 1x-specific chainring for 12 and 13 speed drivetrains. The chainring features a directional narrow-wide profile to prevent chain drops both while pedalling and when freewheeling over rough terrain. The chainring is currently available for 5 bolt, 110 mm BCD fitment.
ratio ring compatibility:
The Ratio Ring is designed for use with Campagnolo Ekar* 13 speed chains, and with SRAM Flattop* and Eagle* 12 speed chains. The 5 bolt, 110 BCD pattern is the most common ‘road compact’ chainset bolt pattern.
*AXS®, DoubleTap®, eTap®, SRAM®,SRAM APEX®, SRAM EAGLE®, SRAM FORCE®, SRAM RED®, SRAM RIVAL®, X0®, X01®, XX1® are registered trade marks owned by SRAM, LLC. Eagle™, Exact Actuation™, GX™, NX™, SRAM APEX 1™, SRAM Force 1™, SRAM RIVAL 1™, S-series™, SX™, WiFLi™, X-Actuation™, XD™, XDR™, XPLR™, XX™, Zero Loss™ are trademarks of SRAM, LLC. The use of these trademarks in the table below is for informative purposes only, and all trademarks remain the property of SRAM, LLC.